2719421 has 2 divisors, whose sum is σ = 2719422. Its totient is φ = 2719420.

The previous prime is 2719411. The next prime is 2719427. The reversal of 2719421 is 1249172.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2208196 + 511225 = 1486^2 + 715^2 .

It is a cyclic number.

It is not a de Polignac number, because 2719421 - 2⁶ = 2719357 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2719427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1359710 + 1359711.

It is an arithmetic number, because the mean of its divisors is an integer number (1359711).

2^2719421 is an apocalyptic number.

It is an amenable number.

2719421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2719421 is an equidigital number, since it uses as much as digits as its factorization.

2719421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 26.

The square root of 2719421 is about 1649.0667057460. The cubic root of 2719421 is about 139.5807354582.

The spelling of 2719421 in words is "two million, seven hundred nineteen thousand, four hundred twenty-one".